Why does Eagle City Health Code have Phnom Penh and silver border?

Eagle City Health Code has Phnom Penh and silver border. The reason is that some people in Phnom Penh have been vaccinated, and those who have not been vaccinated have no Phnom Penh.

The health code is different from the color: the green code indicates the abnormal health status that has not been verified by the epidemic prevention data of the national government service platform; The yellow code represents the health state that the epidemic prevention data verified by the national government service platform is normal, but the on-site temperature measurement is abnormal. Red team represents the health status of confirmed and suspected cases verified by the epidemic prevention data of the national government service platform, that is, close contacts.